Switching cell EMC behavioral modeling by transfer function

In this paper, a new predictive model of a switching cell is proposed. Its particularity is that the equivalent generators (used in the classical model of the switching cell) are replaced by controlled generators driven by two transfer function (TF) whose input is the command signal of the switches. Those TFs take into account the parasitic elements of the switching cell; the ones introduced by the semiconductors and the ones due to the close environment. This linear model allows to directly compute the electrical quantities in the frequency domain which avoid to use temporal solvers and to reduce computation times. Based on measurements this paper shows the capability to obtain a TF which allows to compute the output voltage of a switching cell.